Who this is for: Cambridge IGCSE Biology (0610) students who want mitosis — cell division stages, growth, repair and identical daughter cells — to become reliable marks instead of a sequence they confuse with meiosis.
What query it owns: how to understand and revise mitosis in Cambridge IGCSE Biology.
Why this is safe: this page owns the mitosis revision-guide angle, while Tutopiya’s Mitosis subtopic page owns the learning resource and the free Mitosis quiz owns the practice.

Mitosis is nuclear division that produces two genetically identical diploid daughter cells from one parent cell. Cambridge IGCSE Biology (0610) tests the purposes of mitosis (growth, repair, asexual reproduction), the main stages, and how it differs from meiosis. This guide covers the syllabus definitions, the stage sequence examiners expect, and the question types that appear every year.

Key takeaways

• Mitosis produces two identical diploid daughter cells with the same chromosome number as the parent.
• Purposes: growth, repair of tissues, asexual reproduction.
• Stages (in order): interphase → prophase → metaphase → anaphase → telophase → cytokinesis.
• Chromosomes are copied in interphase; identical chromatids separate in anaphase.
• Meiosis produces four haploid gametes with variation — mitosis does not.

What is mitosis in Cambridge IGCSE Biology?

Mitosis is the process by which a nucleus divides to produce two nuclei, each with the same number of chromosomes as the parent cell. Before mitosis, the DNA replicates during interphase so each chromosome consists of two identical chromatids. During mitosis, chromatids separate and move to opposite poles; the cell then divides by cytokinesis to form two genetically identical daughter cells.

You can read the full explanation, stage diagrams and notes on Tutopiya’s Mitosis subtopic page before you attempt questions.

The core ideas you must master

Idea	What it means	How the exam uses it
Diploid	Full chromosome set (2n)	“State the chromosome number of daughter cells.”
Identical cells	Same genetic information	”State the result of mitosis.”
Growth / repair	Replace damaged or new cells	”State two purposes of mitosis.”
Chromatids	Identical copies of a chromosome	”Describe anaphase.”
Cytokinesis	Cytoplasm division after mitosis	”Describe what happens after telophase.”

Stages of mitosis

Stage	What happens
Interphase	DNA replicates; cell prepares for division
Prophase	Chromosomes condense; nuclear envelope breaks down
Metaphase	Chromosomes line up at the equator of the cell
Anaphase	Chromatids separate and move to opposite poles
Telophase	Nuclear envelopes reform around each set of chromosomes
Cytokinesis	Cytoplasm divides; two daughter cells form

Mitosis vs meiosis

Feature	Mitosis	Meiosis
Daughter cells	2	4
Chromosome number	Diploid (same as parent)	Haploid (half of parent)
Genetic identity	Identical to parent	Genetically different
Purpose	Growth, repair, asexual reproduction	Gamete production
Where	Somatic (body) cells	Reproductive organs

Mitosis in past-paper wording: command words that matter

Command word / phrase	What the question wants	Typical mitosis stem
Define	Precise syllabus definition	”Define mitosis.”
State	Short factual answer	”State two functions of mitosis.”
Describe	What happens at each stage	”Describe what happens during anaphase.”
Explain	Cause and effect	”Explain why mitosis is needed for growth.”
Compare	Similarities and differences	”Compare mitosis and meiosis.”

Worked exam-style stems (how to answer the wording)

1. “State two functions of mitosis.” Growth and repair of tissues (also acceptable: asexual reproduction). Mark-scheme reward: any two syllabus purposes named.
2. “Describe what happens during anaphase of mitosis.” Chromatids separate and move to opposite poles of the cell. Reward: chromatids separate + move to opposite poles.
3. “Compare mitosis and meiosis.” Mitosis: 2 identical diploid cells, for growth/repair. Meiosis: 4 genetically different haploid cells, for gamete formation. Reward: daughter cell number, chromosome number, genetic identity, purpose.

When you can recognise the wording instantly, work the full set on Tutopiya’s Mitosis quiz and drill Meiosis for the compare table.

How mitosis connects to the rest of the syllabus

Mitosis links to Meiosis (compare division types), Asexual Reproduction (mitosis in clones) and Chromosomes, Genes and Proteins (chromosome structure). The Cambridge IGCSE Biology resource hub links every Inheritance subtopic.

Common mistakes students make

• Confusing mitosis (2 identical diploid cells) with meiosis (4 haploid gametes).
• Saying mitosis produces four daughter cells (that is meiosis).
• Placing DNA replication during prophase (it occurs in interphase).
• Describing anaphase as chromosomes lining up (that is metaphase).
• Omitting repair as a purpose of mitosis in state questions.

When you need more support

If mitosis questions keep costing marks — especially stage describe stems and mitosis vs meiosis compare questions — work through the Mitosis quiz and Meiosis notes, then get focused help from a Cambridge IGCSE Biology tutor.

Frequently asked questions

Is mitosis hard in Cambridge IGCSE Biology? The stage sequence is manageable once memorised, but marks are lost confusing mitosis with meiosis and misordering stages.

What is the difference between mitosis and meiosis? Mitosis produces two identical diploid cells for growth and repair; meiosis produces four genetically different haploid gametes for sexual reproduction.

When does DNA replicate before mitosis? During interphase — before the visible stages of mitosis begin.

How do I revise mitosis effectively? Learn the stage sequence from memory, build the mitosis vs meiosis compare table, then take the Mitosis quiz.

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